Given that infection with Mycobacterium tuberculosis (Mtb) is the leading cause of death amongst individuals living with HIV, understanding the complex mechanisms by which Mtb exacerbates HIV infection may lead to improved treatment options or adjuvant therapies. While it is well-understood how HIV compromises the immune system and leaves the host vulnerable to opportunistic infections such as Mtb, less is known about the interplay of disease once active Mtb is established. This review explores how glutathione (GSH) depletion, T cell exhaustion, granuloma formation, and TNF-α upregulation, as a result of Mtb infection, leads to an increase in HIV disease severity. This review also examines the difficulties of treating coinfected patients and suggests further research on the clinical use of GSH supplementation.

BACKGROUND During cardiovascular surgery, surgeons frequently extend their necks to view monitors. This frequent and repetitive motion can lead to cervical spine discomfort, fatigue or injury. OBJECTIVE We designed a study first to examine the significance of cervical ergonomics and then proposed a practical solution to address it effectively. METHODS Five different techniques were tested for accurately and specifically counting the number of neck extensions during surgery. the parameters above. The light sensor technique proved to be ideal method and was chosen for this purpose in 10 different surgical cases. Next, a device was designed to minimize the need for neck extensions by projecting the image of the monitor to a micro-monitor mounted on the surgical loupes that mirror the hemodynamic data monitor directly in front of surgeon’s eye. RESULTS During routine heart surgery, a surgeon extended the neck to look at the monitor in a range of 7-19 times in a coronary surgery and 12-47 times in a valve surgery in our series. Duration of the extensions are often as short as 2-3 seconds, during which the monitor data is read and then the neck is flexed to lo look back at the field. CONCLUSIONS During heart surgery, especially valve surgery, the number of neck extensions can reach a high value. The large number of these movements may potentially cause fatigue, injury, or health issues in heart surgeons. Using a micro-monitor with data transfer option can eliminate the need for neck extension during heart surgery.